Relationships between cashmere production and other important economic traits of Inner Mongolia cashmere goats
Relationships between cashmere production and other important economic traits of Inner Mongolia cashmere goats
复制标题
内蒙古绒山羊产绒量与其他重要经济性状的关系
DOI：
10.1080/1828051x.2019.1626776
复制
发表时间：
2019-01
影响因子：
2.5
通讯作者：
Li Jinquan
中科院分区：
文献类型：
--
作者：
Wang Zhiying;Li Hongwei;Su Rui;Liu Zhihong;Wang Ruijun;Zhang Yanjun;Du Chen;Li Jinquan
内蒙古绒山羊产绒量与绒纤维长度、平均直径和活体重有关。然而，这些关系的相关程度尚未确定的日期。获得了1岁至5岁的IMCG的生产年份、畜群、年龄、出生状况、性别、产绒量、纤维等级、纤维长度、平均纤维直径和活体重。建立了多水平混合模型，识别影响CP的影响因素。结果表明，生产年份、畜群、年龄、性别、采食量、采食量和采食量对CP有极显著影响（p <0.01）。出生状况对CP无影响（p > 0.05）。采用约束最大似然法（REML）估计CP与各影响因子的关系。CP与其它重要经济性状间存在显著的正相关。FL、MFD和LBW的回归系数分别为26.50 g/cm、31.67 g/µm和2.26 g/kg。模型拟合相对较好，调整后的R平方值为0.43。使用类似的方法，CP的关系，这些影响因素在每个羊毛等级进行了分析。结果表明，在超细级和粗级山羊绒中，轻放对粗蛋白含量无显著影响。此外，粗山羊绒的MFD与CP无关。然而，FL，MFD和LWB对所有其他FD等级的CP有非常显著的影响。产绒量与其它经济性状的回归系数因绒级不同而异。内蒙古绒山羊产绒量与活体重呈显著正相关，有利于间接选择，降低了测量成本。应考虑纤维直径，通过建立核心群来保持良好的质量，从而增加经济收入，保护各种资源。
Abstract Previous studies have shown that cashmere production (CP) is related to fibre length (FL), mean fibre diameter (MFD) and live body weight (LWT) in Inner Mongolia cashmere goats (IMCGs). However, the correlation magnitudes of these relationships have not been determined to date. The production year, herd, age, birth status, sex, cashmere production, fibre grades, fibre length, mean fibre diameter and live body weight were obtained for IMCGs from yearlings to 5-year-olds. A multilevel mixed model was constructed to discern the impact factors affecting CP. It was concluded that the production year, herd, age, sex, FL, MFD and LWT had highly significant effects on CP (p < .01). Birth status had no influence on CP (p > .05). The restricted maximum likelihood method (REML) was used to estimate the relationship of CP to all impact factors. Positive correlations were observed between CP and other important economic traits. The regression coefficients for FL, MFD and LBW were 26.50 g/cm, 31.67 g/µm and 2.26 g/kg, respectively. The model fit is relatively good, and the adjusted R-squared value is 0.43. Using a similar method, the relationship of CP to these impacting factors within each fleece grade was analysed. The results showed that LWT had no significant effect on CP in superfine and coarse cashmere grades. Additionally, MFD was not related to CP in coarse cashmere. However, FL, MFD and LWB had highly significant effects on CP in all other FD grades. The regression coefficients of cashmere production for other economic traits varied based on fleece grade. Highlights Cashmere production was positively correlated with live body weight for Inner Mongolia Cashmere goats (IMCGs), which can facilitate indirect selection and reduce the cost of measurement. The fibre diameter should be considered to maintain good quality by establishing a nucleus herd, thereby increasing economic income and protecting a variety of resources.
登录
查看更多内容
DOI：
10.18006/2015.3(3).269.274
发表时间：
2015
影响因子：
--
作者：
Bai Junyan;Jia Xiao-ping;W. Yuqin;Pang Youzhi
通讯作者：
Bai Junyan;Jia Xiao-ping;W. Yuqin;Pang Youzhi
影响因子：
0.4
作者：
T. A. Ferreira;I. G. Pereira;A. Gouveia;A. V. Pires;O. Facó;M. Farah;M. C. Pessoa;M. Guimarães
通讯作者：
T. A. Ferreira;I. G. Pereira;A. Gouveia;A. V. Pires;O. Facó;M. Farah;M. C. Pessoa;M. Guimarães
影响因子：
0.6
作者：
M. Salehi;A. Lavvaf;T. Farahvash
通讯作者：
M. Salehi;A. Lavvaf;T. Farahvash
影响因子：
3.3
作者：
C. E. Terrill
通讯作者：
C. E. Terrill
影响因子：
--
作者：
H. Ansari-Renani
通讯作者：
H. Ansari-Renani